Ultrasonic intrusion alarm



FIG. 1 is a top perspective view of the ultrasonic intrusion alarm showing our new design;

FIG. 2 is a top plan view thereof on an enlarged scale;

FIG. 3 is a side view thereof on an enlarged scale;

FIG. 4 is a bottom perspective view thereof;

FIG. 5 is a bottom view thereof on an enlarged scale; and,

FIG. 6 is a side view thereof on an enlarged scale, opposite that of FIG. 3. 

The ornamental design for the ultrasonic intrusion alarm, as shown and described. 